English 
Deutsch 
The S:FLEX system for foil, bitumen and sandwich roofs
The advantages of the S:FLEX Flat Direct at a glance:
- Installation without roof penetration
- Aerodynamic system with low ballast
- Optimised wind suction openings for reduced ballast
- Problem-free water drainage and optimal module back-ventilation
- Also suitable for roof-edge zones
- We will gladly create the structural design for our customer's projects if required – the documentation we provide includes the structural analysis and the ballast plan
Components
Floor rails
The floor rails feature foam pads on the underside, ensure stable support of the system on the roof and guarantee unimpeded water drainage.
Floor rail connectors
For fast and permanent connection of the floor rails in the area of the module arrays. The fully recessed grub screws allow the installation of ballast in the area near the connectors.
Ridge connectors
For quick and permanent connection of floor rails over the ridge, e.g. to connect module arrays on both sides of the roof.
Cross adapters
Cross adapters with patented one-click technology enable fast and permanent connection of the floor rail and module carrier rail.
Mounting rails/module carrier rails
For end and centre attachment, S:FLEX systems rely on particularly lightweight, structurally optimised hollow chamber rails in various profiles and lengths that feature our proven one-click technology.
Rail connectors
To ensure structurally identical properties in the area of the rails and the connections.
End and mid clamps
S:FLEX module clamps have an extremely wide clamping area and are therefore suitable for all standard modules and frame heights of 30-50 mm. High torsion resistance and our latest, ultra-smooth one-click technology make installation a snap.
Roof shapes
Applications for the S:FLEX Flat Direct
Suitable for saddle roofs, single-pitch roofs, butterfly roofs and flat roofs. For purely ballasted installation or with additional counterweights or roof fastening points.
Data
| Application |
| Pitched roof with foil/bitumen roofing, sandwich roofs; other roofing materials on request |
| Fastening |
| Without penetration / ballasted; Roof connection depending on project |
| Roof pitch |
| Up to 30 degrees |
| Module type |
| Framed modules (frameless on request) |
| Module size |
| All common module sizes |
| Module orientation |
| Vertical/horizontal |
| Orientation |
| Parallel to the roof |
| Building height |
| Max. 25 m |
| Wind load |
| Up to 2.4 kN/m² |
| Snow load |
| Up to 5.4 kN/m² |
Downloads
For a data sheet with details on the Flat Direct System for low-ballast, non-penetrative installation on pitched roofs with foil or bitumen roofing, please click here:
S:FLEX Flat Direct
Here are the assembly instructions for the Flat Direct system:
S:FLEX assembly instructions for Flat Direct
Planning
If you would like to take advantage of our planning support, you can:
– use our planning aid
– fill out our online form
– send an e-mail to
– or call us: +49 (0)761 888 56 08 0
The S:FLEX Flat Direct can be used on a variety of roof shapes with a maximum pitch of 30° – saddle, single-pitch or butterfly roofs, one-sided or double-sided, with framed modules installed vertically or horizontally.
Pre-glued foam pads with a high coefficient of friction and optimum material compatibility under the aluminium floor rails ensure a secure fit with minimal ballast, while the system design includes wide gaps between the modules to ensure optimal rear ventilation and create a suction effect in the direction of the roof. Depending on the roof shape, special ridge angle connectors, counterweights or mechanical couplings ensure even greater safety when anchoring. Any necessary ballast stones are clamped to the floor rails so that they cannot slip.
Like all S:FLEX mounting systems, the Flat Direct also allows quick installation thanks to a high degree of pre-assembly and our proven modular system with pre-assembled modular rails, mid and end clamps for all frame heights and our user-friendly clickable technology.
